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Shawlot, W. et al.

Requirement for Lim1 in head-organizer function.

Lim1 is a homeobox gene expressed in the organizer region of mouse embryos. To investigate the role of Lim1 during embryogenesis, a targeted deletion of the Lim1 gene was generated in embryonic stem cells. Embryos homozygous for the null allele lacked anterior head structures but the remaining body axis developed normally. A partial secondary axis developed anteriorly in some mutant embryos. Lim1 is thus an essential regulator of the vertebrate head organizer.[1]

References

Requirement for Lim1 in head-organizer function. Shawlot, W., Behringer, R.R. Nature (1995) [Pubmed]

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